The careful reading of several volumes in sequence by Mário Ferreira dos Santos impacted me so strongly that I had the impulse to go through all my notes looking for nonsense. However, this is an impulse I cannot allow. To revise my past is to destroy what I was, to erase the traces of a possible evolution. Written lines are the record in time of lasting impressions or not: but they are, nevertheless, the evidence of the path traveled. To suppress what I was is to distort what I am: a justifiable action, not in the minds of those obsessed with perfect coherence, but in the minds of impostors and scoundrels.